I bought this one> https://www.ebay.co.uk/itm/Universal-Black-Full-Metal-Adapter-Mount-Tripod-Brack...

Should be ok for occasional use, although I'm a little unsure about the (short) length of thread that screws into the bush. That said, once the whole lot is screwed together the bins feel nicely balanced and secure despite my concern.

I also saw these> https://www.ebay.co.uk/itm/Strathspey-metal-L-tripod-bracket-for-use-with-binocu...

Appear to have a slightly longer screw thread.

Same item .99p cheaper from Hong Kong > http://www.ebay.co.uk/itm/Strong-Metal-Binocular-Stent-Adaptor-Mounts-Bracket-On...

They do! The Olympus badge on the front unscrews. Once off, you'll see where to attach a bracket. I bought a bracket for a few quid off eBay.

A search on eBay 'sold' items is a rough guide, as is the Classified section in this Forum.

I know nothing about eBay seller costs, but a couple of examples of this lens have sold recently for £295 inc. p&p, so I'm guessing the seller might get £275?

SRS are selling new for £529. As a buyer of pristine used equipment I would expect to be paying between half and two thirds of the new price, so anything between £265 and £350.

This is an old post resurrected by a spammer, but I couldn't help but note all the members who are no longer posting here and wondered what happened to them?

Your lens definitely has more backlash than mine, although the 'click' is the same if I operate my focussing ring quickly. It also looks like your focussing ring action is looser than mine.

Whether that makes my copy better or not I don't know, but this is clearly something that concerns you, so if you can, change the lens. Too many other things in life to worry about!

Morning Lev. Checked my 300. The backlash is not quite as pronounced as the 50-135, but then again it's a prime so doesn't have quite such a complex focussing mechanism as a zoom. There is also a discernible 'knock' if I use the Quick Shift past infinity.

I guess it's one of those things. If you think that there's a problem with the 50-135, and it's easy to do, then swap it for another. Don't be surprised, though, if the replacement exhibits exactly the same "issue".

As to whether backlash should exist in the lens, it is unavoidable for nearly all reversing mechanical couplings, although its effects can be negated or compensated for. In many applications, the theoretical ideal would be zero backlash, but in actual practice some backlash must be allowed to prevent jamming. Reasons for the presence of backlash include allowing for lubrication, manufacturing errors, deflection under load, and thermal expansion.

Mine was new. I also have the 300, which I haven't checked. I actually checked my 50-135 before answering your post. As I said, no problems with it, other than the fact that it's slow to focus, which is a characteristic of this lens too!.

Personally, I'd just get on and enjoy making photos with it. It's a great lens!

I have at least one DC motor lens too. I'll check the 300 and the other lens and let you know what I find.

If you can, compare it with another 50-135, although that might be difficult where you live?

What you describe sounds just like mine, and it works fine. I suspect what you're experiencing is the working and sound of Quick Shift mechanism.

£295 at Park, but £279 at Castle, who are showing it as eol.

Got one, great fun lens.

AFAIK only some Vanguard tripods are Arca-swiss compatible. If you've bought one of them, then any Arca-swiss plate should fit.